The Dieselsellerz pick up a vintage fire truck to transform into a tow truck; Heavy D is determined to finish the endless "Fail of the Year" UTV build.

Heavy D decides to test the physics abilities of the shop and build a somersaulting truck to use for viral videos. And The Muscle takes over a flip from Heavy D and turns a Dodge Ram into a badass modern pop-up camper.

The Diesel Brothers are up against the clock for their SEMA build: a replica Ford Bronco made from an F350 and an Excursion; Heavy D brings in physics help to make his dream of a somersaulting truck come true.